A trap in the condensate line prevents ____.
A. air and foreign material from being drawn up into the drain line
B. additional cooling load from warm air drawn up into the air handler
C. insect invasion of the system
D. all of the above
Answer: D
You might also like to view...
The maximum value of SDI recognized by building codes is
A) 300. B) 50. C) 150. D) 450. E) none of the above.
The top number of a fraction is called the ____________________.
Fill in the blank(s) with the appropriate word(s).
High-rise apartment and office buildings with light floor loads are often constructed using _____.
a. one-way solid slabs b. two-way joist slabs c. two-way flat plate slabs d. composite slabs
To determine the suitability of a site for building, geotechnical engineers measure the soil's _____.
a. density b. cohesiveness c. elasticity d. plasticity